User's Manual

GM862-GPS Hardware User Guide
1vv0300728 Rev. 0 - 27/04/06
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Right reserved page 3 of 55
6.3.1 Noise Filtering................................................................................................................................ 41
6.4 Handset earphone design....................................................................................................42
6.5 Hands-free earphone (low power) design ..........................................................................43
6.6 Car Kit speakerphone design..............................................................................................44
7 General Purpose I/O.......................................................................................................45
7.1 Using a GPIO pin as INPUT .................................................................................................45
7.2 Using a GPIO pin as OUTPUT .............................................................................................45
7.3 Using the Alarm Output GPIO6 ...........................................................................................46
7.4 Using the Buzzer Output GPIO7..........................................................................................46
8 GPS Receiver..................................................................................................................47
8.1 GPS Antenna.........................................................................................................................47
9 Camera ............................................................................................................................48
9.1 Camera Transchip ................................................................................................................48
9.1.1 Camera interface connectors......................................................................................................... 48
9.1.2 EVB for camera support ................................................................................................................ 49
9.1.3 EVB for Transchip camera support ............................................................................................... 50
9.1.3 EVB for Transchip camera support ............................................................................................... 51
9.1.4 Block Diagram for supported camera ............................................................................................ 52
9.1.5 Schematic Diagrams for supported cameras ................................................................................ 53
9.1.6 Example usage script for camera .................................................................................................. 54
10 Document Change Log ..................................................................................................55